What is gnosticism?

MLA

King, Karen L. What Is Gnosticism?. Cambridge (Mass.): Belknap press of Harvard university press, 2003.

APA

King, K. L. (2003). What is gnosticism?. Cambridge (Mass.): Belknap press of Harvard university press.

Chicago

King, Karen L. What Is Gnosticism?. Cambridge (Mass.): Belknap press of Harvard university press, 2003.